Introduction and installation tutorial of the ModelmomMy Library in Python

Modelmommy is a class library for helping unit testing in Python.It provides a simple and easy -to -use way to create model instances for testing, which reduces the burden on writing test data. Install Modelmommy: To install the Modelmommy class library, you can execute the following commands through the PIP package manager: $ pip install modelmommy The simple example code of Modelmommy is as follows: python from model_mommy import mommy from my_app.models import UserProfile import pytest @pytest.fixture def user_profile(): return mommy.make(UserProfile) def test_user_profile_name(user_profile): assert user_profile.name == "John Doe" The above is a simple unit test code fragment, which is used to test a model called UserProfile and its name property.Using the `Model_mommy` library, we first used the` mommy.make` method to create an instance of `userprofile` and use it as a parameter of the test function.Then we can use an assertive sentence to check whether the attribute value of the instance is in line with expectations. In this example, the `Model_mommy` library generates a random` Userprofile` instance for us and return it to the test function for verification. In addition to this simple example, `Model_mommy` also provides more advanced features, such as creating a set of related model instances, associated model instances, etc.You can find more detailed information and example code in the official document. It should be noted that in addition to installing the `Model_mommy`, you also need to install the Pytest library to run the test in this example.Install pytest through the following command: $ pip install pytest To run the test, you can execute the following commands in the command line: $ pytest test_module.py Among them, test_module.py is the file name you save the test code, which can be changed as needed. In this article, we introduced the Modelmommy class libraries in Python and the basic steps of installing and using it.I hope this will help you and provide enough information to start using this convenient testing tool.